/*
 * Copyright 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

@file:RestrictTo(RestrictTo.Scope.LIBRARY)

package androidx.collection.internal

import androidx.annotation.RestrictTo

internal actual class LruHashMap<K : Any, V : Any>
actual constructor(initialCapacity: Int, loadFactor: Float) {

    actual constructor(original: LruHashMap<out K, V>) : this() {
        for ((key, value) in original.entries) {
            put(key, value)
        }
    }

    private val map = LinkedHashMap<K, V>(initialCapacity, loadFactor, true)

    actual val isEmpty: Boolean
        get() = map.isEmpty()

    actual val entries: Set<Map.Entry<K, V>>
        get() = map.entries

    actual operator fun get(key: K): V? = map[key]

    actual fun put(key: K, value: V): V? = map.put(key, value)

    actual fun remove(key: K): V? = map.remove(key)
}
